"Unfortunately, due to unexpected medical issues, lead singer, Steven Tyler, is seeking immediate care and has been advised by his doctors that he cannot travel or perform at this time," the news release reads.

The Atlanta rapper has started a GoFundMe page called “Show BoB the Curve” to raise $200,000 to launch multiple satellites into space. According to the page, he will keep people updated with “step-by-step documentation of the process.”

At press time, the crowdfunding page had raised $225 from 18 people over a three-day period.

In January 2016, B.o.B. posted a series of tweets to share his arguments that the Earth is flat. His comments drew the attention of scientist Neil deGrasse Tyson, who teasingly tweeted, “being five centuries regressed in your reasoning doesn’t mean we all can’t still like your music.”

After a weekend marked by President Donald Trump’s public spats with Steph Curry, Colin Kaepernick and professional athletes who protest during the national anthem, singer Stevie Wonder knelt in support of several causes before his set at the Global Citizens Festival on Saturday in New York City.

With the help of an assistant, Wonder got down on both knees and told the audience, “Tonight, I’m taking a knee for America. Not just one knee, but both knees. Both knees in prayer for our planet, our future and our leaders of the world. Amen. I wanted to say that prayer before I served you my musical meal.”

“Alex Rodriguez and I, who are both New Yorkers, are utilizing all of our resources and relationships in entertainment, sports and business to garner support for Puerto Rican and Caribbean relief efforts,” Lopez said.

“I’ve been so moved by the initial responses … They have been overwhelming,” she said. “Nobody has said no. Anybody we’ve have called is right there asking what they can do. They’re all very eager to help.”

Jennifer Lopez said Thursday night that she still hasn’t heard from her family in Puerto Rico – two days after Hurricane Maria slammed into the island and left millions without power, People reported. Maria’s 155-mph winds ripped trees from the ground, tore roofs from buildings, and caused massive flooding.

Lopez, 48, is one of several celebrities with ties to Puerto Rico. She was born in the Bronx, New York to Puerto Rican parents. She is making pleas for donations to help residents recover from the hurricane.

Ricky Martin, Daddy Yankee, Marc Anthony and Rosie Perez are also making appeals, People reported, using their star power to help raise awareness and money for Puerto Rico.

“What’s on my mind is what’s going on in Puerto Rico. The devastation is beyond belief,” Lopez said in an Instagram post. “Me and my cousin still haven’t been able to hear from our families over there.

“What’s foremost on my mind and many others is trying to figure out the best way to help,” she said. “Today, Puerto Rico needs our help. I urge you to support and donate to the efforts of the First Lady of Puerto Rico, Beatriz Areizaga. Together we can help rebuild our island, and the Caribbean.”

Martin, who was born in San Juan, posted a similar plea for help on Instagram, People reported. Puerto Rico’s capital city was hit hard by the hurricane.

“Puerto Rico needs you at the moment. Just go to youcaring.com/rickymartin and help us,” Martin said in an emotional video. “Donate whatever you can, just one dollar would make a difference. If everyone would give me a dollar, my goodness. Puerto Rico is in a precarious position at the moment. We can’t do it alone. We need you.”

As of early Saturday, Martin’s site alone had raised more than $228,000.

Daddy Yankee, 40, asked his fans to bring donations to his concert in New York City on Thursday and shared a video of volunteers loading up trucks, People reported. He’s asking the same for those attending his Chicago concert on Friday.

Anthony, 49, posted a similar video to Lopez and Martin’s, while Perez 53 — who also has family in Puerto Rico she is still attempting to contact — tweeted out links to aid groups FRMA and Politica.

To portray the many faces of depression, Talinda Bennington — the widow of Linkin Park frontman Chester Bennington — shared a video on Twitter showing her husband playing a game with his children hours before his death.

In the video, Chester eats a “rotten eggs”-flavored jelly bean, which he immediately spits out. He chuckles as he tries to get the gross taste out of his mouth, much to the amusement of those around him.

Since her husband’s death, Talinda Bennington has been actively updating her social media feed with messages of support for those who struggle with mental illness, often adding the hashtag #MakeChesterProud.

Nas celebrated his birthday during a private dinner at The Pool Lounge in New York. Minaj, 34, posted a picture of her and Nas on her Instagram account. She has her arm around Nas while they stand next to Alicia Keys and her husband, Swizz Beatz, People reported.

In a video from the event, a man Minaj identified as “Nasir” was spotted creeping up behind Minaj and kissing her on the cheek. Many fans have speculated the man was indeed Nas, whose given name is Nasir Bin Olu Dara Jones.

The Shade Room also posted a video of Minaj and Nas together that night. In the video, Nas had his arm wrapped around Minaj’s shoulder as Minaj had her hand placed on his chest while the rapper was presented with his birthday cake.

Rumors of the pair dating began to circulate when Manaj posted a picture of them cuddling to her Instagram account.

Then in May, Minaj told television host Ellen DeGeneres that she had plenty of respect for the rapper.

“He is the king of Queens, and I like to think I’m the queen of Queens,” Minaj said. “He’s a rap legend. Let’s just say that I have a lot of respect for him, and you know, he’s kind of cute, too.”

But Minaj stressed that the relationship with Nas was not intimate, People reported.

“I’m just chillin’ right now. I’m celibate. I wanted to go a year without dating any men. I hate men,” Minaj told DeGeneres. “I might make an exception to the rule for him, because he’s so dope.”

According to the preliminary report from the National Transportation Safety Board, the pilot reported he couldn’t control the RPM of the engine just a few minutes after takeoff. He discussed options for landing with two flight instructors on the ground, and they decided he would stop the engine and perform something called an autorotation. It was a maneuver the experienced pilot had performed several times before.

The report\ reads, “During the descent, the rotor rpm decayed to the point where the instructor could see the individual rotor blades. The helicopter descended from view prior to reaching the runway threshold and the sounds of impact were heard.”

The pilot was also killed in the crash. The listed reason for the flight was “to provide an orientation/pleasure flight to the passenger who was scheduled to perform in a concert on the airport later that evening.”

Montgomery Gentry was to play a concert at the Flying W Airport & Resort that night.

Troy Gentry will be remembered with a celebration of life service at the Grand Ole Opry House in Nashville Thursday at 11:30 a.m. ET. The service will be livestreamed at Opry.com/Troy-Gentry.

The concert will feature “exclusive performances and rare collaborations,” according to a press release announcing the event. Asleep at the Wheel will be the house band, and Charlie Sexton will serve as music director.

Proceeds will benefit the Rebuild Texas Fund, created by the Michael & Susan Dell Foundation in collaboration with the OneStar Foundation. According to the Rebuild Texas website, the fund “will support community partners in four focus areas — health and housing; schools and child care; workforce and transportation; and capital for rebuilding small businesses.” The concert is part of the Dell Foundation’s effort to raise $100 million toward hurricane recovery efforts.

“This fund was created to help rebuild all of the communities, big and small, that have been devastated by Hurricane Harvey,” Houston native Michael Dell said in the event’s press release. “We will be rebuilding for years to come.” His wife, native Texan Susan Dell, added, “For us, this is personal.”

The telecast will air without commercials. In addition, an hour of the event will stream internationally on YouTube.com/TexasStrong from 9 p.m. to 10 p.m. CDT. Google will match $500,000 in telethon donations, with volunteers from Google’s Austin office and employees of TEGNA working the telethon phone banks. Donations also will be accepted at the RebuildTX.org website.

“The outpouring of support from the local community and communities across the nation is a testament to the spirit, grit and determination of the people of Texas,” said TEGNA president/CEO Dave Lougee.

Others who have donated “efforts and services” to the event, according to the press release, include the Erwin Center, Springboard Productions, Solomon Group, Big House Sounds, Soundcheck Austin, Hotel Van Zandt, Sodexo, GSD&M, Andy Langer, the Texas Music Office and the City of Austin. TEGNA is producing the broadcast in partnership with Debra Davis Productions. Austin company C3 Presents is producing the live event and also is donating all its services.

Known for his gently rumbling baritone, as well as his tall, lanky frame, Williams’ career yielded a catalog of timeless hit songs, including 21 No. 1 chart toppers, that remain popular today. Songs such as“Some Broken Hearts Never Mend” positioned him as a gifted songwriter, while his signature vocal style made him appreciated as a storyteller whose breathtaking renditions of songs such as “Tulsa Time,” “Amanda,” “Good Ol’ Boys Like Me” and “I Believe In Love” gave an incomparable voice to these now-classics.

Keith Urban has been one of the most outspoken fans of Williams’ work. Earlier this year, he told CMT that Williams’ recordings “influence the way I make records ... They’re the masters of recorded simplicity and honoring a song in a way that I cannot think of other records that hit that spot of extraordinary craftsmanship. It’s about achieving that.”